CN111446996A - Method and device for user equipment and base station for multi-antenna transmission - Google Patents

Abstract

The invention discloses a method and device in a user equipment, a base station for multi-antenna transmission. The first node operates the first downlink information, wherein the first downlink information is an information unit, the information unit includes a first field and a second field, and the first field of the first downlink information is used to determine the first For air interface resources, the second field of the first downlink information is used to determine the second air interface resources. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The target receiver of the first type of reference signal includes the first node, and the sender of the second type of reference signal is the first node. Measurements for the first type of reference signal are used to generate the second type of reference signal. The first node is a user equipment and the operation is reception; or the first node is a base station and the operation is transmission. The present invention configures the uplink and downlink reference signals through one information unit, and saves the related configuration signaling overhead.

Description

A user equipment, method and apparatus in a base station for multi-antenna transmission

This application is a divisional application of the following original application:

--Application date of the original application: 2017.04.18

--The application number of the original application: 201710251472.8

--The title of the invention-creation of the original application: a user equipment for multi-antenna transmission, a method and an apparatus in a base station

technical field

The present invention relates to a transmission method and device in a wireless communication system, in particular to a transmission scheme and device in a wireless communication system supporting multi-antenna transmission.

Background technique

Massive MIMO has become a research hotspot in next-generation mobile communications. In large-scale MIMO, multiple antennas are beamforming to form a beam pointing in a specific direction to improve communication quality. In order to point the beam in the correct direction, both communicating parties need to know (part of) the channel information of the wireless channel. In the traditional LTE (Long Term Evolution, Long Term Evolution) system, the most commonly used way to obtain channel information is that the receiving end of the wireless signal estimates the channel state information by measuring the reference signal, and feeds back/notifies the estimated channel state information to The transmitter of the wireless signal is implemented. In a large-scale MIMO system, as the number of antennas increases significantly, the reference signal and feedback overhead required by this traditional method will increase significantly. In order to reduce overhead, channel reciprocity between uplink and downlink channels will be fully utilized in 5G systems to obtain (part of) channel information, especially in TDD (Time-Division Duplex, time division multiplexing) systems. After using channel reciprocity, how to design uplink and downlink reference signals to optimize system performance and reduce overhead is a problem that needs to be studied.

SUMMARY OF THE INVENTION

The inventor found through research that in a system with (partial) channel reciprocity of uplink and downlink channels, by establishing a connection between uplink and downlink reference signals, channel reciprocity can be effectively utilized and the quality of channel estimation can be improved. In order to reduce the related configuration signaling overhead, the associated uplink and downlink reference signals may be jointly configured.

The present invention discloses a solution to the above findings. It should be noted that although the original motivation of the present invention is for multi-antenna transmission, the present invention is also applicable to single-antenna transmission. The embodiments and features of the embodiments in the first node of the present application may be applied in the second node and vice versa, provided there is no conflict. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily, provided that there is no conflict.

The present invention discloses a method used in a first node for multi-antenna transmission, which includes the following steps:

- Step A. Manipulate the first downstream information.

Wherein, the first downlink information is an information unit, the information unit includes a first field and a second field, and the first field in the first downlink information is used to determine the first air interface resource, The second field in the first downlink information is used to determine second air interface resources. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The intended recipient of the first type of reference signal includes the first node, and the sender of the second type of reference signal is the first node. Measurements for the first type of reference signal are used to generate the second type of reference signal. The first node is a user equipment and the operation is reception; or the first node is a base station and the operation is transmission.

As an embodiment, the advantage of the above method is that an association is established between {the first type of reference signal, the second type of reference signal}, using channel reciprocity, according to the first type of reference signal The measurement determines the direction of the transmission beam of the second type of reference signal, which reduces the overhead of the second type of reference signal.

As an embodiment, the advantage of the above method is that {the first air interface resource, the second air interface resource} are configured simultaneously by using the same information unit, which reduces the time required for {the first type of reference signal, the The overhead of configuration signaling related to establishing association between the second type of reference signals.

As an embodiment, the first downlink information is carried by higher layer signaling.

As an embodiment, the first downlink information is carried by RRC (Radio Resource Control, radio resource control) signaling.

As an embodiment, the information unit is an IE (Information Element, information particle).

As an embodiment, the information element is a CSI-Process IE.

As an embodiment, the first downlink information is CSI-Process IE.

As an embodiment, the first downlink information includes all fields (fields) in the CSI-Process IE.

As an embodiment, the first field is a csi-RS-ConfigNZPId-r11 field.

As an embodiment, the second field is a csi-RS-ConfigNZPId-r11 field.

As an embodiment, the first air interface resource includes one or more of {time domain resource, frequency domain resource, code domain resource}.

As an embodiment, the first air interface resource includes a CSI-RS (Channel Status Information Reference Signal, Channel Status Information Reference Signal) resource (resource), and the first node is a user equipment.

As an embodiment, the first air interface resource includes an SRS (Sounding reference signal, sounding reference signal) resource (resource), and the first node is a base station.

As an embodiment, the first air interface resource includes a positive integer number of discontinuous time units in the time domain.

As a sub-embodiment of the above-mentioned embodiment, the time unit is a sub-frame.

As a sub-embodiment of the above-mentioned embodiment, the time unit is a slot.

As a sub-embodiment of the above-mentioned embodiment, the time unit is 1 ms.

As an embodiment, the first air interface resource includes a positive integer number of consecutive time units in the time domain.

As an embodiment, the second air interface resource includes one or more of {time domain resource, frequency domain resource, code domain resource}.

As an embodiment, the second air interface resource includes an SRS resource (resource), and the first node is a user equipment.

As an embodiment, the second air interface resource includes a CSI-RS resource (resource), and the first node is a base station.

As an embodiment, the second air interface resource includes a positive integer number of discontinuous time units in the time domain.

As an embodiment, the second air interface resource includes a positive integer number of consecutive time units in the time domain.

As an embodiment, the first type of reference signal includes CSI-RS, and the first node is a user equipment.

As an embodiment, the second type of reference signal includes SRS, and the first node is a user equipment.

As an embodiment, the first type of reference signal includes SRS, and the first node is a base station.

As an embodiment, the second type of reference signal includes CSI-RS, and the first node is a base station.

As an embodiment, the first air interface resource occurs multiple times in the time domain, and the time interval between any two adjacent occurrences of the first air interface resource in the time domain is equal.

As an embodiment, the second air interface resource occurs multiple times in the time domain, and the time interval between any two adjacent occurrences of the second air interface resource in the time domain is equal.

As an embodiment, the first air interface resource and the second air interface resource configured by the same information element are associated. The advantage of the embodiment is that the overhead of configuration signaling is saved.

As a sub-embodiment of the above embodiment, the fact that the first air interface resource and the second air interface resource configured by the same information unit are associated refers to: the first air interface resource configured by a given information unit The time domain resources occupied by the air interface resources and the time domain resources occupied by the second air interface resources configured by the given information element are associated. The given information unit is any one of the information units.

As a sub-embodiment of the above embodiment, the fact that the first air interface resource and the second air interface resource configured by the same information unit are associated refers to: the first air interface resource configured by a given information unit The time interval between any two adjacent occurrences of the air interface resource in the time domain is the same as the time interval between any two adjacent occurrences of the second air interface resource configured by the given information unit in the time domain of. The given information unit is any one of the information units.

As a sub-embodiment of the above embodiment, the fact that the first air interface resource and the second air interface resource configured by the same information unit are associated refers to: the first air interface resource configured by a given information unit The time interval between any two adjacent occurrences of the air interface resource in the time domain is the positive value of the time interval between any two adjacent occurrences of the second air interface resource configured by the given information unit in the time domain. integer multiples. The given information unit is any one of the information units.

As a sub-embodiment of the above embodiment, the fact that the first air interface resource and the second air interface resource configured by the same information unit are associated refers to: the second air interface resource configured by a given information unit is related The time interval between any two adjacent occurrences of the air interface resource in the time domain is the positive value of the time interval between any two adjacent occurrences of the first air interface resource configured by the given information unit in the time domain. integer multiples.

As a sub-embodiment of the above embodiment, the fact that the first air interface resource and the second air interface resource configured by the same information unit are associated refers to: the first air interface resource configured by a given information unit The frequency domain resources occupied by the air interface resources and the frequency domain resources occupied by the second air interface resources configured by the given information element are associated. The given information unit is any one of the information units.

As an embodiment, the first air interface resource occurs once in the time domain.

As an embodiment, the second air interface resource occurs once in the time domain.

As an embodiment, the first downlink information is transmitted on a downlink physical layer data channel (that is, a downlink channel that can be used to carry physical layer data).

As a sub-embodiment of the foregoing embodiment, the downlink physical layer data channel is PDSCH (Physical Downlink Shared CHannel, physical downlink shared channel).

As a sub-embodiment of the foregoing embodiment, the downlink physical layer data channel is sPDSCH (short PDSCH, short PDSCH).

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is NR-PDSCH (NewRadio PDSCH, New Radio PDSCH).

As an embodiment, that the measurement for the first type of reference signal is used to generate the second type of reference signal means: the measurement for the first type of reference signal is used to determine a positive integer number of the second type of antenna A port group, the second-type reference signals are respectively transmitted by the positive integer number of second-type antenna port groups. The second-type antenna port group includes a positive integer number of second-type antenna ports.

As an embodiment, the measurement for the first type of reference signal is used to generate the second type of reference signal means: the measurement for the first type of reference signal is used to determine a positive integer number of beamforming vectors , the positive integer number of beamforming vectors are respectively used for transmitting the second type of reference signals.

Specifically, according to an aspect of the present invention, it is characterized in that, it further comprises the following steps:

- Step A0: Manipulate Q1 second downlink messages and Q2 third downlink messages.

The Q1 pieces of second downlink information are respectively used to determine {Q1 first type air interface resources, Q1 first type identifiers}, the Q1 first type identifiers and the Q1 first type air interface resources One-to-one correspondence, the first field in the first downlink information is used to determine a first identifier, and the first air interface resource is one of the Q1 first-type air interface resources of the first type Air interface resources, the first type identifier corresponding to the first air interface resource is the first identifier. The Q2 third downlink information is respectively used to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type air interface resources—one by one Correspondingly, the second field in the first downlink information is used to determine a second identifier, and the second air interface resource is one of the Q2 second type air interface resources. The second type air interface resource , the second type identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer. The first node is a user equipment and the operation is reception; or the first node is a base station and the operation is transmission.

As an embodiment, the advantage of the above method is that the second downlink information and the third downlink information are used to preconfigure and identify a plurality of the first type of air interface resources and a plurality of the second type of air interface resources. In the first downlink information, the first type identifier and the second type identifier can be used to flexibly select the first type of air interface resources and the plurality of the second type of air interface resources. The first air interface resource and the second air interface resource achieve a good compromise between overhead and flexibility.

As an embodiment, the second downlink information is carried by higher layer signaling.

As an embodiment, the second downlink information is carried by RRC signaling.

As an embodiment, the third downlink information is carried by higher layer signaling.

As an embodiment, the third downlink information is carried by RRC signaling.

As an embodiment, the second downlink information is an IE.

As an embodiment, the second downlink information is CSI-RS-Config IE, and the first node is a user equipment.

As an embodiment, the second downlink information is SoundingRS-UL-Config IE, and the first node is a base station.

As an embodiment, the third downlink information is an IE.

As an embodiment, the third downlink information is SoundingRS-UL-Config IE, and the first node is a user equipment.

As an embodiment, the third downlink information is CSI-RS-Config IE, and the first node is a base station.

As an embodiment, the first field in the first downlink information indicates the first identifier.

As an embodiment, the second field in the first downlink information indicates the second identifier.

As an embodiment, the first type of identification is a non-negative integer.

As an embodiment, the second type of identifier is a non-negative integer.

As an embodiment, the first identifier is a non-negative integer.

As an embodiment, the second identifier is a non-negative integer.

As an embodiment, the second downlink information includes a sixth field, and the sixth field in the second downlink information indicates the corresponding first type identifier.

As an embodiment, the third downlink information includes a seventh field, and the seventh field in the third downlink information indicates the corresponding identifier of the second type.

As an embodiment, the first type of air interface resources include one or more of {time domain resources, frequency domain resources, code domain resources}.

As an embodiment, the first type of air interface resources include CSI-RS resources (resources), and the first node is a user equipment.

As an embodiment, the first type of air interface resources include SRS resources (resources), and the first node is a base station.

As an embodiment, the second type of air interface resources includes one or more of {time domain resources, frequency domain resources, code domain resources}.

As an embodiment, the second type of air interface resources include SRS resources (resources), and the first node is a user equipment.

As an embodiment, the second type of air interface resources include CSI-RS resources (resources), and the first node is a base station.

As an embodiment, the second downlink information is transmitted on a downlink physical layer data channel (that is, a downlink channel that can be used to carry physical layer data).

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is PDSCH.

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is sPDSCH.

As a sub-embodiment of the foregoing embodiment, the downlink physical layer data channel is NR-PDSCH.

As an embodiment, the third downlink information is transmitted on a downlink physical layer data channel (that is, a downlink channel that can be used to carry physical layer data).

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is PDSCH.

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is sPDSCH.

As a sub-embodiment of the foregoing embodiment, the downlink physical layer data channel is NR-PDSCH.

Specifically, according to an aspect of the present invention, the step A further includes the following steps:

- Step A1 : operate downlink signaling.

The downlink signaling is used to trigger the sending of at least one of {the first type of reference signal, the second type of reference signal}. The first node is a user equipment and the operation is reception; or the first node is a base station and the operation is transmission.

As an embodiment, the downlink signaling is MAC CE (Medium Access Control layerControl Element, medium access control layer Control Element) signaling.

As an embodiment, the downlink signaling is physical layer signaling.

As an embodiment, the downlink signaling is transmitted on a downlink physical layer data channel (ie, a downlink channel that can be used to carry physical layer data).

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is PDSCH.

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is sPDSCH.

As a sub-embodiment of the foregoing embodiment, the downlink physical layer data channel is NR-PDSCH.

As an embodiment, the downlink signaling is transmitted on a downlink physical layer control channel (ie, a downlink channel that can only be used to carry physical layer signaling).

As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is a PDCCH (Physical Downlink Control CHannel, physical downlink control channel).

As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is sPDCCH (shortPDCCH, short PDCCH).

As a sub-embodiment of the above embodiment, the downlink physical layer control channel is NR-PDCCH (NewRadio PDCCH, new radio PDCCH).

Specifically, according to an aspect of the present invention, it is characterized in that it further comprises at least one of the following two steps:

- Step B: receiving the first type of reference signal in the first air interface resource;

- Step C: sending the second type of reference signal in the second air interface resource.

The first air interface resource includes M first sub-resources, and the first-type reference signal is respectively sent by M first-type antenna port groups in the M first sub-resources. The second air interface resource includes K second sub-resources, and the second-type reference signal is respectively transmitted by K second-type antenna port groups in the K second sub-resources. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers.

As an embodiment, measurements for the first type of reference signals are used to determine the K second type of antenna port groups.

As an embodiment, the time domain resources occupied by any two of the M first sub-resources are mutually orthogonal (non-overlapping).

As an embodiment, the time domain resources occupied by at least two of the M first sub-resources are mutually orthogonal (non-overlapping).

As an embodiment, at least two of the M first sub-resources have the same time domain resources occupied by the first sub-resources.

As an embodiment, the time domain resources occupied by any two of the K second sub-resources are mutually orthogonal (non-overlapping).

As an embodiment, the time domain resources occupied by at least two of the K second sub-resources are mutually orthogonal (non-overlapping).

As an embodiment, at least two of the K second sub-resources have the same time domain resources occupied by the second sub-resources.

As an embodiment, the first-type antenna port is formed by superimposing multiple first-type antennas through antenna virtualization (Virtualization), and a mapping coefficient of the multiple first-type antennas to the first-type antenna port Form the first type of beamforming vectors. The first type of beamforming vector is formed by the Kronecker product of a first type of analog beamforming vector and a first type of digital beamforming vector. The first type of antenna is an antenna configured by the sender of the first type of reference signal.

As an embodiment, different first-type antenna ports in a first-type antenna port group correspond to the same first-type analog beamforming vector.

As an embodiment, different first-type antenna ports in a first-type antenna port group correspond to different first-type digital beamforming vectors.

As an embodiment, different first-type antenna port groups correspond to different first-type analog beamforming vectors.

As an embodiment, the first type of antenna port group includes one of the first type of antenna ports, and the first type of digital beamforming vector is equal to 1.

As an embodiment, the first type of antenna port group includes a plurality of the first type of antenna ports.

As an embodiment, the number of the first-type antenna ports included in any two different first-type antenna port groups is the same.

As an embodiment, there are at least two different first-type antenna port groups including different numbers of the first-type antenna ports.

As an embodiment, the second-type antenna port is formed by superimposing multiple second-type antennas through antenna virtualization (Virtualization), and the mapping coefficients of the second-type antennas to the second-type antenna port Form the second type of beamforming vector. The second type of beamforming vector is formed by the Kronecker product of a second type of analog beamforming vector and a second type of digital beamforming vector. The second type of antenna is an antenna configured by the first node.

As an embodiment, different antenna ports of the second type in the antenna port group of the second type correspond to the same analog beamforming vector of the second type.

As an embodiment, different second-type antenna ports in a second-type antenna port group correspond to different second-type digital beamforming vectors.

As an embodiment, different second-type antenna port groups correspond to different second-type analog beamforming vectors.

As an embodiment, the second type of antenna port group includes one of the second type of antenna ports, and the second type of digital beamforming vector is equal to 1.

As an embodiment, the second-type antenna port group includes a plurality of the second-type antenna ports.

As an embodiment, the number of the second-type antenna ports included in any two different second-type antenna port groups is the same.

As an embodiment, there are at least two different second-type antenna port groups including different numbers of second-type antenna ports.

As an embodiment, the first-type reference signal includes M first-type sub-signals, and the M first-type sub-signals are respectively allocated by M first-type antenna port groups in the M first sub-resources send.

As an embodiment, the measurements for K1 first-type sub-signals are respectively used to determine K1 reference vectors, the K1 reference vectors are used to determine K second-type analog beamforming vectors, the K The second-type analog beamforming vectors are respectively the second-type analog beamforming vectors corresponding to the K second-type antenna port groups. The K1 first-type sub-signals are a subset of the M first-type sub-signals, and the K1 is a positive integer not greater than the M and not greater than the K.

As a sub-embodiment of the above-mentioned embodiment, the measurements on the M first-type sub-signals are respectively used to determine M first measurement values, and the K1 first-type sub-signals are the M first-type sub-signals The first type of sub-signals corresponding to the largest K1 of the first measurement values in the type of sub-signals.

As a sub-embodiment of the above embodiment, the measurements on the M first-type sub-signals are respectively used to determine M reference vectors, the K1 reference vectors being a subset of the M reference vectors. Any one of the M reference vectors belongs to an antenna virtualization vector set, and the antenna virtualization vector set includes a positive integer number of antenna virtualization vectors.

As a sub-embodiment of the above-mentioned embodiment, for any given first-type sub-signal, when the given first-type sub-signal is received by the corresponding reference vector, the given first-type sub-signal The reception quality is higher than the reception quality of the given first-type sub-signal when the given first-type sub-signal is received by other antenna virtualization vectors in the antenna virtualization vector set.

As a reference embodiment of the above sub-embodiment, the received quality is CQI (Channel Quality Indicator, channel quality identifier).

As a reference embodiment of the foregoing sub-embodiment, the received quality is RSRP (Reference Signal Received Power, reference signal received power).

As a reference embodiment of the foregoing sub-embodiment, the received quality is RSRQ (Reference Signal Received Quality, reference signal received quality).

As a sub-embodiment of the above-mentioned embodiment, the first measurement value is the reception quality obtained when the corresponding sub-signal of the first type is received by using the corresponding reference vector.

As a sub-embodiment of the above embodiment, the K1 is equal to the K, and the K second-type analog beamforming vectors are respectively equal to the K1 reference vectors.

As a sub-embodiment of the above embodiment, the K1 is smaller than the K, and among the K second-type analog beamforming vectors, K1 are equal to the K1 second-type analog beamforming vectors respectively. reference vector.

As an embodiment, the second-type reference signal includes K second-type sub-signals, and the K second-type sub-signals are respectively allocated by K second-type antenna port groups in the K second-type sub-resources send.

Specifically, according to an aspect of the present invention, the step B further includes the following steps:

- Step B1. Sending the first message.

Wherein, measurements for the first type of reference signals are used to determine the first information. The first information is used to determine whether the K second type antenna port groups need to be updated. The information element includes a third field, and the third field in the first downlink information is used to determine a third air interface resource, and the first information is sent in the third air interface resource. The first node is user equipment.

As an embodiment, the advantage of the above method is that, by using channel reciprocity, it can be found in time that the K second type antenna port groups need to be updated through the measurement of the first type reference signal, and the first type of antenna port group needs to be updated. The information notifies the sender of the first downlink information of this information, so that the sender of the first downlink information can adjust the configuration of the second type of reference signal in time, ensuring that the second type of reference signal is based on the second Reliability of channel estimates for reference signal-like.

As an embodiment, the advantage of the above method is that {the first air interface resource, the second air interface resource, the third air interface resource} are configured simultaneously by using the same information unit, which saves the overhead of configuration signaling .

As an embodiment, the first information includes UCI (Uplink Control Information, uplink control information).

As a sub-embodiment of the foregoing embodiment, the UCI includes {HARQ-ACK (Acknowledgement, acknowledgment), CSI (Channel State Information, channel state information), RI (Rank Indicator, rank identifier), CQI (Channel Quality Indicator, at least one of channel quality indicator), PMI (Precoding Matrix Indicator, precoding matrix indicator), and CRI (Channel-state information reference signals ResourceIndicator, channel state information reference signal resource identifier)}.

As an embodiment, the first information includes SRI (SRS Resource Indicator, sounding reference signal resource identifier).

As an embodiment, the first information includes a first parameter, and when the first parameter is equal to a first value, the K second type antenna port groups do not need to be updated; the first parameter is not equal to the first value When a value is set, the K second-type antenna port groups need to be updated. The first parameter and the first numerical value are each a non-negative integer.

As a sub-embodiment of the above embodiment, when the first parameter is equal to 0, the K second type antenna port groups do not need to be updated; when the first parameter is equal to 1, the K second type antennas The port group needs to be updated.

As a sub-embodiment of the above embodiment, when the first parameter is equal to 1, the K second type antenna port groups do not need to be updated; when the first parameter is equal to 0, the K second type antennas The port group needs to be updated.

As an embodiment, the first information is transmitted on an uplink physical layer control channel (that is, an uplink channel that can only be used to carry physical layer signaling).

As a sub-embodiment of the foregoing embodiment, the uplink physical layer control channel is PUCCH (PhysicalUplink Control CHannel, physical uplink control channel).

As a sub-embodiment of the foregoing embodiment, the uplink physical layer control channel is sPUCCH (shortPUCCH, short PUCCH).

As a sub-embodiment of the foregoing embodiment, the uplink physical layer control channel is NR-PUCCH (NewRadio PUCCH, new radio PUCCH).

As an embodiment, the first information is transmitted on an uplink physical layer data channel (ie, an uplink channel that can be used to carry physical layer data).

As a sub-embodiment of the foregoing embodiment, the uplink physical layer data channel is a PUSCH (PhysicalUplink Shared CHannel, physical uplink shared channel).

As a sub-embodiment of the foregoing embodiment, the uplink physical layer data channel is sPUSCH (shortPUSCH, short PUSCH).

As a sub-embodiment of the foregoing embodiment, the uplink physical layer data channel is NR-PUSCH (NewRadio PUSCH, new radio PUSCH).

As an embodiment, measurements for the first type of reference signals are used to determine K1 reference vectors. When the K1 reference vectors change, the first information is used to determine that the K second type antenna port groups need to be updated; otherwise, the first information is used to determine the K second type antenna port groups Antenna port groups do not need to be updated.

As an embodiment, the third air interface resource includes one or more of {time domain resource, frequency domain resource, code domain resource}.

As an embodiment, the third air interface resource occurs multiple times in the time domain, and the time interval between any two adjacent occurrences of the third air interface resource in the time domain is equal.

As an embodiment, the first air interface resource and the third air interface resource configured by the same information element are associated. The advantage of the embodiment is that the overhead of configuration signaling is saved.

As a sub-embodiment of the above embodiment, the fact that the first air interface resource and the third air interface resource configured by the same information unit are associated refers to: the first air interface resource configured by a given information unit The time domain resources occupied by the air interface resources and the time domain resources occupied by the third air interface resources configured by the given information element are associated. The given information unit is any one of the information units.

As a sub-embodiment of the above embodiment, the fact that the first air interface resource and the third air interface resource configured by the same information unit are associated refers to: the first air interface resource configured by a given information unit The time interval between any two adjacent occurrences of the air interface resource in the time domain is the same as the time interval between any two adjacent occurrences of the third air interface resource configured by the given information unit in the time domain of. The given information unit is any one of the information units.

As a sub-embodiment of the above embodiment, the fact that the first air interface resource and the third air interface resource configured by the same information unit are associated refers to: the first air interface resource configured by a given information unit The time interval between any two adjacent occurrences of the air interface resource in the time domain is the positive value of the time interval between any two adjacent occurrences of the third air interface resource configured by the given information unit in the time domain. integer multiples. The given information unit is any one of the information units.

As a sub-embodiment of the above embodiment, the fact that the first air interface resource and the third air interface resource configured by the same information unit are associated refers to: the third air interface resource configured by a given information unit is associated The time interval between any two adjacent occurrences of the air interface resource in the time domain is the positive value of the time interval between any two adjacent occurrences of the first air interface resource configured by the given information unit in the time domain. integer multiples.

As a sub-embodiment of the above embodiment, the fact that the first air interface resource and the third air interface resource configured by the same information unit are associated refers to: the first air interface resource configured by a given information unit The frequency domain resources occupied by the air interface resources and the frequency domain resources occupied by the third air interface resources configured by the given information element are associated. The given information unit is any one of the information units.

As an embodiment, the third air interface resource occurs once in the time domain.

As an embodiment, the information element includes a fifth field, and the fifth field in the first downlink information is used to determine a fourth air interface resource, and the first node is in the fourth air interface resource A third type of reference signal is received, {measurements for the first type of reference signals, measurements for the third type of reference signals} are used to determine the first information.

As a sub-embodiment of the foregoing embodiment, the fourth air interface resource includes one or more of {time domain resource, frequency domain resource, code domain resource}.

As a sub-embodiment of the foregoing embodiment, the third type of reference signals includes {ZP (Zero Power, zero power) CSI-RS, NZP (Non Zero Power, non-zero power) CSI-RS, DMRS (DeModulation Reference Signals, demodulation reference signal)}.

As a sub-embodiment of the above embodiment, the fifth field is a csi-IM-ConfigId-r11 field, and the first downlink information is a CSI-Process IE.

Specifically, according to an aspect of the present invention, it is characterized in that, it further comprises the following steps:

- Step C1. Manipulate the fourth downstream information.

wherein the measurement for the first type of reference signal is used for at least one of {triggering the fourth downlink information, generating the fourth downlink information}, the first node is a base station and the operation is sending; or the first information is used to trigger the fourth downlink information, the first node is a user equipment and the operation is receiving. The fourth downlink information is used to reconfigure at least the latter of {the first air interface resource, the second air interface resource}.

As an embodiment, the advantage of the above method is that when it is found through the measurement on the first type reference signal or the first information that the K second type antenna port groups need to be updated, the fourth type of antenna port group is sent in time. The downlink information is used to update the configuration of the second type of reference information, which ensures the reliability of the channel estimation based on the second type of reference information.

As an embodiment, the fourth downlink information is carried by higher layer signaling.

As an embodiment, the fourth downlink information is carried by RRC signaling.

As an embodiment, the fourth downlink information is one of the information units.

As an embodiment, both the first downlink information and the fourth downlink information include a fourth field, and the value of the fourth field in the first downlink information and the fourth downlink information The values of the fourth field are equal.

As an embodiment, the fourth domain is the csi-ProcessId-r11 domain.

As an embodiment, the fourth downlink information is an IE.

As an embodiment, the first downlink information and the fourth downlink information are both CSI-Process IEs.

As an embodiment, the fourth downlink information includes all fields (fields) in the CSI-Process IE.

As an embodiment, the measurement on the first type of reference signal is used to generate the fourth downlink information means: the measurement on the first type of reference signal is used to determine the K, the fourth The downlink information indicates the K.

As a sub-embodiment of the foregoing embodiment, the fourth downlink information implicitly indicates the K.

As a sub-embodiment of the foregoing embodiment, the fourth downlink information explicitly indicates the K.

As an embodiment, the measurement on the reference signal of the first type is used to generate the fourth downlink information means that the measurement on the reference signal of the first type is used to determine the K antennas of the second type A port group, where the fourth downlink information indicates the K second-type antenna port groups.

As a sub-embodiment of the foregoing embodiment, the fourth downlink information implicitly indicates the K second-type antenna port groups.

As a sub-embodiment of the foregoing embodiment, the fourth downlink information explicitly indicates the K second-type antenna port groups.

As an embodiment, measurements for the first type of reference signals are used to determine K1 reference vectors. When the K1 reference vectors change, the sending of the fourth downlink information is triggered; otherwise, the sending of the fourth downlink information is not triggered.

As a sub-embodiment of the above-mentioned embodiment, the K1 is a positive integer not greater than the K.

As a sub-embodiment of the above-described embodiment, the K1 is used to determine the K.

As a sub-embodiment of the above-mentioned embodiment, the K1 reference vectors are used to determine the K second-type antenna port groups.

As an embodiment, the sending of the fourth downlink information is triggered, and the first information is used to determine that the K second-type antenna port groups need to be updated.

As an embodiment, the sending of the fourth downlink information is not triggered, and the first information is used to determine that the K second-type antenna port groups do not need to be updated.

As an embodiment, the fourth downlink information is used to reconfigure the second air interface resource.

As an embodiment, the fourth downlink information is used to reconfigure {the first air interface resource, the second air interface resource}.

As an embodiment, the fourth downlink information is further used to reconfigure the third air interface resource.

Specifically, according to an aspect of the present invention, the first type of reference signal is a channel state information reference signal, the second type of reference signal is a sounding reference signal, and the first node is a user equipment.

As an embodiment, the channel state information reference signal is CSI-RS.

As an embodiment, the sounding reference signal is an SRS.

Specifically, according to an aspect of the present invention, the reference signal of the first type is a sounding reference signal, the reference signal of the second type is a channel state information reference signal, and the first node is a base station.

Specifically, according to an aspect of the present invention, the information unit includes a fourth field, and the fourth field is used to identify the corresponding information unit.

As an embodiment, the value of the fourth field in the first downlink information is equal to the value of the fourth field in the fourth downlink information, and the first downlink information is equal to the value of the fourth field in the fourth downlink information. The four downlink information are all the information units.

As an embodiment, the fourth field is a csi-ProcessId-r11 field, and the information element is a CSI-Process IE.

As an embodiment, the value of the fourth field is a non-negative integer.

The present invention discloses a method used in a second node for multi-antenna transmission, which includes the following steps:

- Step A. Execute the first downlink information.

Wherein, the first downlink information is an information unit, the information unit includes a first field and a second field, and the first field in the first downlink information is used to determine the first air interface resource, The second field in the first downlink information is used to determine second air interface resources. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The sender of the first type of reference signal is the second node, and the target recipient of the second type of reference signal includes the second node. Measurements for the first type of reference signal are used to generate the second type of reference signal. The second node is a base station and the performing is transmitting; or the second node is a user equipment and the performing is receiving.

As an embodiment, the information element is an IE.

As an embodiment, the information element is a CSI-Process IE.

As an embodiment, the first field is a csi-RS-ConfigNZPId-r11 field.

As an embodiment, the second field is a csi-RS-ConfigNZPId-r11 field.

As an embodiment, the first air interface resource includes a CSI-RS resource (resource), and the second node is a base station.

As an embodiment, the first air interface resource includes an SRS resource (resource), and the second node is a user equipment.

As an embodiment, the second air interface resource includes an SRS resource (resource), and the second node is a base station.

As an embodiment, the second air interface resource includes a CSI-RS resource (resource), and the second node is a user equipment.

As an embodiment, the first type of reference signal includes CSI-RS, and the second node is a base station.

As an embodiment, the second type of reference signal includes SRS, and the second node is a base station.

As an embodiment, the first type of reference signal includes SRS, and the second node is a user equipment.

As an embodiment, the second type of reference signal includes CSI-RS, and the second node is a user equipment.

As an embodiment, the first air interface resource and the second air interface resource configured by the same information element are associated.

Specifically, according to an aspect of the present invention, it is characterized in that, it further comprises the following steps:

- Step A0: Execute Q1 second downlink messages and Q2 third downlink messages.

The Q1 pieces of second downlink information are respectively used to determine {Q1 first type air interface resources, Q1 first type identifiers}, the Q1 first type identifiers and the Q1 first type air interface resources One-to-one correspondence, the first field in the first downlink information is used to determine a first identifier, and the first air interface resource is one of the Q1 first-type air interface resources of the first type Air interface resources, the first type identifier corresponding to the first air interface resource is the first identifier. The Q2 third downlink information is respectively used to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type air interface resources—one by one Correspondingly, the second field in the first downlink information is used to determine a second identifier, and the second air interface resource is one of the Q2 second type air interface resources. The second type air interface resource , the second type identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer. The second node is a base station and the performing is transmitting; or the second node is a user equipment and the performing is receiving.

As an embodiment, the second downlink information is an IE.

As an embodiment, the second downlink information is CSI-RS-Config IE, and the second node is a base station.

As an embodiment, the second downlink information is SoundingRS-UL-Config IE, and the second node is a user equipment.

As an embodiment, the third downlink information is an IE.

As an embodiment, the third downlink information is SoundingRS-UL-Config IE, and the second node is a base station.

As an embodiment, the third downlink information is CSI-RS-Config IE, and the second node is a user equipment.

Specifically, according to an aspect of the present invention, the step A further includes the following steps:

- Step A1: Execute downlink signaling.

The downlink signaling is used to trigger the sending of at least one of {the first type of reference signal, the second type of reference signal}. The second node is a base station and the performing is transmitting; or the second node is a user equipment and the performing is receiving.

Specifically, according to an aspect of the present invention, it is characterized in that it further comprises at least one of the following two steps:

- Step B: sending the first type of reference signal in the first air interface resource;

- Step C: receiving the second type of reference signal in the second air interface resource.

The first air interface resource includes M first sub-resources, and the first-type reference signal is respectively sent by M first-type antenna port groups in the M first sub-resources. The second air interface resource includes K second sub-resources, and the second-type reference signal is respectively transmitted by K second-type antenna port groups in the K second sub-resources. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers.

As an embodiment, measurements for the first type of reference signals are used to determine the K second type of antenna port groups.

As an embodiment, the first-type antenna port is formed by superimposing multiple first-type antennas through antenna virtualization (Virtualization), and a mapping coefficient of the multiple first-type antennas to the first-type antenna port Form the first type of beamforming vectors. The first type of beamforming vector is formed by the Kronecker product of a first type of analog beamforming vector and a first type of digital beamforming vector. The first type of antenna is an antenna configured by the second node.

As an embodiment, the second-type antenna port is formed by superimposing multiple second-type antennas through antenna virtualization (Virtualization), and the mapping coefficients of the second-type antennas to the second-type antenna port Form the second type of beamforming vector. The second type of beamforming vector is formed by the Kronecker product of a second type of analog beamforming vector and a second type of digital beamforming vector. The second type of antenna is an antenna configured by the sender of the second type of reference signal.

Specifically, according to an aspect of the present invention, the step B further includes the following steps:

- Step B1. Receiving the first information.

Wherein, measurements for the first type of reference signals are used to determine the first information. The first information is used to determine whether the K second type antenna port groups need to be updated. The information element includes a third field, and the third field in the first downlink information is used to determine a third air interface resource, and the first information is sent in the third air interface resource. The second node is a base station.

As an embodiment, the first air interface resource and the third air interface resource configured by the same information element are associated.

Specifically, according to an aspect of the present invention, it is characterized in that, it further comprises the following steps:

- Step C1. Execute the fourth downstream message.

Wherein, the measurement on the first type of reference signal is used for at least one of {triggering the fourth downlink information, generating the fourth downlink information}, the second node is a user equipment and the execution is reception; or the first information is used to trigger the fourth downlink information, the second node is a base station and the execution is transmission. The fourth downlink information is used to reconfigure at least the latter of {the first air interface resource, the second air interface resource}.

As an embodiment, the fourth downlink information is one of the information units.

As an embodiment, the fourth domain is the csi-ProcessId-r11 domain.

As an embodiment, the first downlink information and the fourth downlink information are both CSI-Process IEs.

Specifically, according to an aspect of the present invention, the first type of reference signal is a channel state information reference signal, the second type of reference signal is a sounding reference signal, and the second node is a base station.

Specifically, according to an aspect of the present invention, the first type of reference signal is a sounding reference signal, the second type of reference signal is a channel state information reference signal, and the second node is a user equipment.

Specifically, according to an aspect of the present invention, the information unit includes a fourth field, and the fourth field is used to identify the corresponding information unit.

As an embodiment, the value of the fourth field in the first downlink information is equal to the value of the fourth field in the fourth downlink information, and the first downlink information is equal to the value of the fourth field in the fourth downlink information. The four downlink information are all the information units.

The present invention discloses a device used in a first node for multi-antenna transmission, which includes the following modules:

The first processing module: used to operate the first downlink information.

Wherein, the first downlink information is an information unit, the information unit includes a first field and a second field, and the first field in the first downlink information is used to determine the first air interface resource, The second field in the first downlink information is used to determine second air interface resources. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The intended recipient of the first type of reference signal includes the first node, and the sender of the second type of reference signal is the first node. Measurements for the first type of reference signal are used to generate the second type of reference signal. The first node is a user equipment and the operation is reception; or the first node is a base station and the operation is transmission.

As an embodiment, the foregoing device in the first node used for multi-antenna transmission is characterized in that the first processing module is further configured to operate Q1 pieces of second downlink information and Q2 pieces of third downlink information. The Q1 pieces of second downlink information are respectively used to determine {Q1 first type air interface resources, Q1 first type identifiers}, the Q1 first type identifiers and the Q1 first type air interface resources One-to-one correspondence, the first field in the first downlink information is used to determine a first identifier, and the first air interface resource is one of the Q1 first-type air interface resources of the first type Air interface resources, the first type identifier corresponding to the first air interface resource is the first identifier. The Q2 third downlink information is respectively used to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type air interface resources—one by one Correspondingly, the second field in the first downlink information is used to determine a second identifier, and the second air interface resource is one of the Q2 second type air interface resources. The second type air interface resource , the second type identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer. The first node is a user equipment and the operation is reception; or the first node is a base station and the operation is transmission.

As an embodiment, the above-mentioned device in the first node used for multi-antenna transmission is characterized in that the first processing module is further configured to operate downlink signaling. The downlink signaling is used to trigger the sending of at least one of {the first type of reference signal, the second type of reference signal}. The first node is a user equipment and the operation is reception; or the first node is a base station and the operation is transmission.

As an embodiment, the above-mentioned device used in the first node for multi-antenna transmission is characterized in that the first type of reference signal is a channel state information reference signal, the second type of reference signal is a sounding reference signal, so The first node is a user equipment.

As an embodiment, the above-mentioned device in the first node used for multi-antenna transmission is characterized in that the first type of reference signal is a sounding reference signal, the second type of reference signal is a channel state information reference signal, so The first node is a base station.

As an embodiment, the above-mentioned device used in the first node for multi-antenna transmission is characterized in that the information unit includes a fourth field, and the fourth field is used to identify the corresponding information unit.

As an embodiment, the above-mentioned device used in the first node for multi-antenna transmission is characterized in that it further includes the following two modules:

a second processing module: configured to receive the first type of reference signal in the first air interface resource;

A third processing module: configured to send the second type of reference signal in the second air interface resource.

The first air interface resource includes M first sub-resources, and the first-type reference signal is respectively sent by M first-type antenna port groups in the M first sub-resources. The second air interface resource includes K second sub-resources, and the second-type reference signal is respectively transmitted by K second-type antenna port groups in the K second sub-resources. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers.

As an embodiment, the above-mentioned device in the first node used for multi-antenna transmission is characterized in that the second processing module is further configured to send the first information. Wherein, measurements for the first type of reference signals are used to determine the first information. The first information is used to determine whether the K second type antenna port groups need to be updated. The information element includes a third field, and the third field in the first downlink information is used to determine a third air interface resource, and the first information is sent in the third air interface resource. The first node is user equipment.

As an embodiment, the foregoing device in the first node used for multi-antenna transmission is characterized in that the third processing module is further configured to operate fourth downlink information. wherein the measurement for the first type of reference signal is used for at least one of {triggering the fourth downlink information, generating the fourth downlink information}, the first node is a base station and the operation is sending; or the first information is used to trigger the fourth downlink information, the first node is a user equipment and the operation is receiving. The fourth downlink information is used to reconfigure at least the latter of {the first air interface resource, the second air interface resource}.

The present invention discloses a device used in a second node for multi-antenna transmission, which includes the following modules:

Fourth processing module: used to execute the first downlink information.

Wherein, the first downlink information is an information unit, the information unit includes a first field and a second field, and the first field in the first downlink information is used to determine the first air interface resource, The second field in the first downlink information is used to determine second air interface resources. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The sender of the first type of reference signal is the second node, and the target recipient of the second type of reference signal includes the second node. Measurements for the first type of reference signal are used to generate the second type of reference signal. The second node is a base station and the performing is transmitting; or the second node is a user equipment and the performing is receiving.

As an embodiment, the foregoing device in the second node used for multi-antenna transmission is characterized in that the fourth processing module is further configured to execute Q1 pieces of second downlink information and Q2 pieces of third downlink information. The Q1 pieces of second downlink information are respectively used to determine {Q1 first type air interface resources, Q1 first type identifiers}, the Q1 first type identifiers and the Q1 first type air interface resources One-to-one correspondence, the first field in the first downlink information is used to determine a first identifier, and the first air interface resource is one of the Q1 first-type air interface resources of the first type Air interface resources, the first type identifier corresponding to the first air interface resource is the first identifier. The Q2 third downlink information is respectively used to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type air interface resources—one by one Correspondingly, the second field in the first downlink information is used to determine a second identifier, and the second air interface resource is one of the Q2 second type air interface resources. The second type air interface resource , the second type identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer. The second node is a base station and the performing is transmitting; or the second node is a user equipment and the performing is receiving.

As an embodiment, the foregoing device in the second node used for multi-antenna transmission is characterized in that the fourth processing module is further configured to perform downlink signaling. The downlink signaling is used to trigger the sending of at least one of {the first type of reference signal, the second type of reference signal}. The second node is a base station and the performing is transmitting; or the second node is a user equipment and the performing is receiving.

As an embodiment, the above-mentioned device in the second node used for multi-antenna transmission is characterized in that the first type of reference signal is a channel state information reference signal, the second type of reference signal is a sounding reference signal, so The second node is a base station.

As an embodiment, the above-mentioned device in the second node used for multi-antenna transmission is characterized in that the first type of reference signal is a sounding reference signal, the second type of reference signal is a channel state information reference signal, so The second node is a user equipment.

As an embodiment, the above-mentioned device used in the second node for multi-antenna transmission is characterized in that the information unit includes a fourth field, and the fourth field is used to identify the corresponding information unit.

As an embodiment, the above-mentioned device used in the second node for multi-antenna transmission is characterized in that it further includes the following two modules:

Fifth processing module: configured to send the first type of reference signal in the first air interface resource;

A sixth processing module: configured to receive the second type of reference signal in the second air interface resource.

The first air interface resource includes M first sub-resources, and the first-type reference signal is respectively sent by M first-type antenna port groups in the M first sub-resources. The second air interface resource includes K second sub-resources, and the second-type reference signal is respectively transmitted by K second-type antenna port groups in the K second sub-resources. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers.

As an embodiment, the foregoing device in the second node used for multi-antenna transmission is characterized in that the fifth processing module is further configured to receive the first information. Wherein, measurements for the first type of reference signals are used to determine the first information. The first information is used to determine whether the K second type antenna port groups need to be updated. The information element includes a third field, and the third field in the first downlink information is used to determine a third air interface resource, and the first information is sent in the third air interface resource. The second node is a base station.

As an embodiment, the foregoing device in the second node used for multi-antenna transmission is characterized in that the sixth processing module is further configured to execute fourth downlink information. Wherein, the measurement on the first type of reference signal is used for at least one of {triggering the fourth downlink information, generating the fourth downlink information}, the second node is a user equipment and the execution is reception; or the first information is used to trigger the fourth downlink information, the second node is a base station and the execution is transmission. The fourth downlink information is used to reconfigure at least the latter of {the first air interface resource, the second air interface resource}.

As an embodiment, compared with the traditional solution, the present invention has the following advantages:

- By establishing the association between the uplink and downlink reference signals, the channel reciprocity can be used to determine the transmission beamforming direction of the uplink/downlink reference signal according to the measurement for the downlink/uplink reference signal, which reduces the uplink/downlink reference signal. s expenses.

- Using the same information element to configure the uplink and downlink reference signals at the same time, reducing the overhead of configuration signaling related to establishing an association between the uplink and downlink reference signals.

-. In addition to configuring the uplink and downlink reference signals, the same information element is also used to configure a feedback channel. When the user equipment finds that the beamforming direction of the corresponding uplink reference signal needs to be updated through the measurement of the downlink reference signal, it can pass this feedback. The channel feeds back this information to the base station in time so that the base station can make corresponding processing.

-. When the base station learns that the beamforming direction of the downlink/uplink reference signal needs to be updated through the measurement of the uplink reference signal or user feedback, the configuration of the downlink/uplink reference signal can be updated in time, which ensures the reliability of the downlink/uplink channel estimation sex.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 shows a flowchart of wireless transmission according to an embodiment of the present invention;

FIG. 2 shows a flowchart of wireless transmission according to another embodiment of the present invention;

FIG. 3 shows a schematic diagram of the content of the first downlink information according to an embodiment of the present invention;

FIG. 4 shows a schematic diagram of the relationship between {first downlink information, Q1 pieces of second downlink information, and Q2 pieces of third downlink information} according to an embodiment of the present invention;

FIG. 5 shows a schematic diagram of the relationship between the first downlink information and the fourth downlink information according to an embodiment of the present invention;

FIG. 6 shows a schematic diagram of how to generate a second type of reference signal according to the measurement for the first type of reference signal according to an embodiment of the present invention;

FIG. 7 shows a schematic diagram of the relationship of {first air interface resource, second air interface resource, third air interface resource} in the time domain according to an embodiment of the present invention;

FIG. 8 shows a structural block diagram of a processing apparatus used in a first node according to an embodiment of the present invention;

FIG. 9 shows a structural block diagram of a processing apparatus used in a second node according to an embodiment of the present invention;

FIG. 10 shows a structural block diagram of a processing apparatus used in a first node according to another embodiment of the present invention;

FIG. 11 shows a structural block diagram of a processing apparatus used in a second node according to another embodiment of the present invention.

Example 1

Embodiment 1 illustrates a flowchart of wireless transmission, as shown in FIG. 1 . In FIG. 1, the base station N1 is the serving cell maintenance base station of the user equipment U2. In FIG. 1, the steps in block F1 to block F7 are respectively optional.

For N1, Q1 second downlink information is sent in step S101; Q2 third downlink information is sent in step S102; first downlink information is sent in step S11; downlink signaling is sent in step S103; In step S105, the first type of reference signal is sent in the first air interface resource; in step S105, the second type of reference signal is received in the second air interface resource; in step S106, the first information is received; in step S107, the fourth downlink information is sent.

For U2, Q1 second downlink information is received in step S201; Q2 third downlink information is received in step S202; first downlink information is received in step S21; downlink signaling is received in step S203; In step S205, the first type of reference signal is received in the first air interface resource; in step S205, the second type of reference signal is sent in the second air interface resource; in step S206, the first information is sent; in step S207, the fourth downlink information is received.

In Embodiment 1, the first downlink information is an information unit, the information unit includes a first field and a second field, and the first field in the first downlink information is used by the U2 For determining the first air interface resource, the second field in the first downlink information is used by the U2 to determine the second air interface resource. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The sender of the first type of reference signal is the N1, the target receiver of the first type of reference signal includes the U2, the sender of the second type of reference signal is the U2, the second The intended recipients of the reference-like signal include the N1. The measurements for the first type of reference signal are used by the U2 to generate the second type of reference signal. The Q1 second downlink information is respectively used by the U2 to determine {Q1 first type air interface resources, Q1 first type identifiers}, the Q1 first type identifiers and the Q1 first type air interfaces There is a one-to-one correspondence between resources, the first field in the first downlink information is used by the U2 to determine the first identifier, and the first air interface resource is one of the Q1 first type air interface resources. the first type of air interface resource, and the first type of identifier corresponding to the first air interface resource is the first identifier. The Q2 third downlink information is respectively used by the U2 to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type air interfaces The resources are in one-to-one correspondence, the second field in the first downlink information is used by the U2 to determine the second identifier, and the second air interface resource is one of the Q2 second type air interface resources. the second type of air interface resource, and the second type of identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer. The downlink signaling is used to trigger the transmission of at least one of {the first type of reference signal, the second type of reference signal}. The first air interface resource includes M first sub-resources, and the first-type reference signal is respectively sent by M first-type antenna port groups in the M first sub-resources. The second air interface resource includes K second sub-resources, and the second-type reference signal is respectively transmitted by K second-type antenna port groups in the K second sub-resources. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers. Measurements for the first type of reference signals are used by the U2 to determine the first information. The first information is used by the N1 to determine whether the K second type antenna port groups need to be updated. The information element includes a third field, and the third field in the first downlink information is used by the U2 to determine a third air interface resource, and the first information is sent in the third air interface resource. The first information is used to trigger the fourth downlink information, and the fourth downlink information is used by the N1 to reconfigure at least the latter of {the first air interface resource, the second air interface resource} .

As sub-embodiment 1 of embodiment 1, the first downlink information is carried by high-layer signaling.

As sub-embodiment 2 of embodiment 1, the first downlink information is carried by RRC signaling.

As a sub-embodiment 3 of the embodiment 1, the information element is an IE.

As a sub-embodiment 4 of the embodiment 1, the information element is a CSI-Process IE.

As a sub-embodiment 5 of the embodiment 1, the first field is a csi-RS-ConfigNZPId-r11 field.

As a sub-embodiment 6 of Embodiment 1, the first air interface resource includes one or more of {time domain resources, frequency domain resources, and code domain resources}.

As a sub-embodiment 7 of the embodiment 1, the first air interface resource includes a CSI-RS resource (resource).

As a sub-embodiment 8 of Embodiment 1, the second air interface resources include one or more of {time domain resources, frequency domain resources, and code domain resources}.

As a sub-embodiment 9 of the embodiment 1, the second air interface resource includes an SRS resource (resource).

As a sub-embodiment 10 of Embodiment 1, the first type of reference signal is a channel state information reference signal, and the second type of reference signal is a sounding reference signal.

As a sub-embodiment of sub-embodiment 10 of embodiment 1, the channel state information reference signal is a CSI-RS.

As a sub-embodiment of sub-embodiment 10 of embodiment 1, the sounding reference signal is an SRS.

As a sub-embodiment 11 of the embodiment 1, the information unit includes a fourth field, and the fourth field is used to identify the corresponding information unit.

As a sub-embodiment of sub-embodiment 11 of embodiment 1, the fourth field is the csi-ProcessId-r11 field.

As a sub-embodiment 12 of Embodiment 1, the first air interface resource occurs multiple times in the time domain, and the time interval between any two adjacent occurrences of the first air interface resource in the time domain is equal .

As a sub-embodiment 13 of Embodiment 1, the first air interface resource occurs once in the time domain.

As a sub-embodiment 14 of Embodiment 1, the second air interface resource occurs multiple times in the time domain, and the time interval between any two adjacent occurrences of the second air interface resource in the time domain is equal .

As a sub-embodiment 15 of Embodiment 1, the second air interface resource occurs once in the time domain.

As a sub-embodiment 16 of Embodiment 1, the first air interface resource and the second air interface resource configured by the same information element are associated.

As a sub-embodiment 17 of Embodiment 1, the second downlink information is carried by higher layer signaling.

As sub-embodiment 18 of embodiment 1, the second downlink information is carried by RRC signaling.

As a sub-embodiment 19 of the embodiment 1, the third downlink information is carried by higher layer signaling.

As sub-embodiment 20 of embodiment 1, the third downlink information is carried by RRC signaling.

As a sub-embodiment 21 of the embodiment 1, the second downlink information is an IE.

As a sub-embodiment 22 of Embodiment 1, the second downlink information is CSI-RS-Config IE.

As a sub-embodiment 23 of the embodiment 1, the third downlink information is an IE.

As sub-embodiment 24 of embodiment 1, the third downlink information is SoundingRS-UL-Config IE.

As a sub-embodiment 25 of Embodiment 1, the downlink signaling is MAC CE signaling.

As sub-embodiment 26 of embodiment 1, the downlink signaling is physical layer signaling.

As a sub-embodiment 27 of embodiment 1, the measurement for the first-type reference signal is used by the U2 to determine the K second-type antenna port groups.

As a sub-embodiment 28 of Embodiment 1, the first-type antenna port is formed by superimposing multiple first-type antennas through antenna virtualization (Virtualization), and the multiple first-type antennas to the first-type antenna The mapping coefficients of the antenna ports form the first type of beamforming vectors. The first type of beamforming vector is formed by the Kronecker product of a first type of analog beamforming vector and a first type of digital beamforming vector. The first type of antenna is the antenna configured by the N1.

As a sub-embodiment 29 of Embodiment 1, the second-type antenna port is formed by stacking multiple second-type antennas through antenna virtualization (Virtualization), and the multiple second-type antennas to the second-type antenna The mapping coefficients of the antenna ports form the second type of beamforming vectors. The second type of beamforming vector is formed by the Kronecker product of a second type of analog beamforming vector and a second type of digital beamforming vector. The second type of antenna is the antenna configured by the U2.

As sub-embodiment 30 of embodiment 1, the first information includes UCI.

As a sub-embodiment of sub-embodiment 30 of embodiment 1, the UCI includes at least one of {HARQ-ACK, CSI, RI, CQI, PMI, CRI}.

As a sub-embodiment 31 of Embodiment 1, the first information includes a first parameter, and when the first parameter is equal to a first value, the K second-type antenna port groups do not need to be updated; the first parameter When not equal to the first value, the K second-type antenna port groups need to be updated. The first parameter and the first numerical value are each a non-negative integer.

As a sub-embodiment 32 of embodiment 1, the measurement for the first type of reference signal is used by the U2 to determine the K second type of antenna port groups. When the K second type antenna port groups change, the first information indicates that the K second type antenna port groups need to be updated; otherwise, the first information indicates the K second type antenna port groups Antenna port groups do not need to be updated.

As a sub-embodiment 33 of Embodiment 1, the measurement for the first type of reference signals is used by the U2 to determine K1 reference vectors. When the K1 reference vectors change, the first information indicates that the K second type antenna port groups need to be updated; otherwise, the first information indicates that the K second type antenna port groups do not need to be updated .

As a sub-embodiment 34 of Embodiment 1, the third air interface resource includes one or more of {time domain resource, frequency domain resource, code domain resource}.

As a sub-embodiment 35 of Embodiment 1, the third air interface resource occurs multiple times in the time domain, and the time interval between any two adjacent occurrences of the third air interface resource in the time domain is equal .

As a sub-embodiment 36 of Embodiment 1, the third air interface resource occurs once in the time domain.

As a sub-embodiment 37 of Embodiment 1, the first air interface resource and the third air interface resource configured by the same information element are associated.

As a sub-embodiment 38 of Embodiment 1, the fourth downlink information is carried by higher layer signaling.

As sub-embodiment 39 of embodiment 1, the fourth downlink information is carried by RRC signaling.

As a sub-embodiment 40 of Embodiment 1, the fourth downlink information is one of the information elements.

As a sub-embodiment 41 of Embodiment 1, both the first downlink information and the fourth downlink information include a fourth field, and the value of the fourth field in the first downlink information and the The values of the fourth fields in the fourth downlink information are equal.

As a sub-embodiment 42 of Embodiment 1, the first downlink information and the fourth downlink information are both CSI-Process IEs.

As a sub-embodiment 43 of Embodiment 1, the sending of the fourth downlink information is triggered, and the first information indicates that the K second-type antenna port groups need to be updated.

As a sub-embodiment 44 of Embodiment 1, the sending of the fourth downlink information is not triggered, and the first information indicates that the K second-type antenna port groups do not need to be updated.

As a sub-embodiment 45 of the embodiment 1, the blocks F1 to F7 in FIG. 1 all exist.

As a sub-embodiment 46 of the embodiment 1, block F1, block F2, block F4 and block F5 in FIG. 1 exist, but block F3, block F6 and block F7 do not exist.

As a sub-embodiment 47 of Embodiment 1, blocks F1 to F5 in FIG. 1 exist, and blocks F6 and F7 do not exist.

As a sub-embodiment 48 of the embodiment 1, the block F1, the block F2, the block F4, the block F5 and the block F6 in FIG. 1 exist, and the block F3 and the block F7 do not exist.

As a sub-embodiment 49 of the embodiment 1, block F1, block F2, block F4, block F5, block F6 and block F7 in FIG. 1 exist, and block F3 does not exist.

Example 2

Embodiment 2 illustrates a flowchart of wireless transmission, as shown in FIG. 2 . In FIG. 2, the base station N3 is the serving cell maintenance base station of the user equipment U4. In FIG. 2, the steps in block F8 to block F13 are respectively optional.

For N3, send Q1 second downlink information in step S301; send Q2 third downlink information in step S302; send first downlink information in step S31; send downlink signaling in step S303; In step S305, the first type of reference signal is received in the first air interface resource; in step S305, the second type of reference signal is sent in the second air interface resource; in step S306, the fourth downlink information is sent.

For U4, Q1 second downlink information is received in step S401; Q2 third downlink information is received in step S402; first downlink information is received in step S41; downlink signaling is received in step S403; The first type of reference signal is sent in the first air interface resource in step S405; the second type of reference signal is received in the second air interface resource in step S405; the fourth downlink information is received in step S406.

In Embodiment 2, the first downlink information is an information unit, the information unit includes a first field and a second field, and the first field in the first downlink information is used by the U4 For determining the first air interface resource, the second field in the first downlink information is used by the U4 to determine the second air interface resource. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The sender of the first type of reference signal is the U4, the target receiver of the first type of reference signal includes the N3, the sender of the second type of reference signal is the N3, the second The intended recipients of the reference-like signal include the U4. The measurements for the first type of reference signal are used by the N3 to generate the second type of reference signal. The Q1 pieces of second downlink information are respectively used by the U4 to determine {Q1 first type air interface resources, Q1 first type identifiers}, the Q1 first type identifiers and the Q1 first type air interfaces There is a one-to-one correspondence between resources, the first field in the first downlink information is used by the U4 to determine the first identifier, and the first air interface resource is one of the Q1 first type air interface resources. the first type of air interface resource, and the first type of identifier corresponding to the first air interface resource is the first identifier. The Q2 third downlink information is respectively used by the U4 to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type air interfaces The resources are in one-to-one correspondence, the second field in the first downlink information is used by the U4 to determine the second identifier, and the second air interface resource is one of the Q2 second type air interface resources. the second type of air interface resource, and the second type of identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer. The downlink signaling is used to trigger the transmission of at least one of {the first type of reference signal, the second type of reference signal}. The first air interface resource includes M first sub-resources, and the first-type reference signal is respectively sent by M first-type antenna port groups in the M first sub-resources. The second air interface resource includes K second sub-resources, and the second-type reference signal is respectively sent by K second-type antenna port groups in the K second sub-resources. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers. The measurement for the first type of reference signal is used by the N3 for at least one of {triggering the fourth downlink information, generating the fourth downlink information}. The fourth downlink information is used by the N3 to reconfigure at least the latter of {the first air interface resource, the second air interface resource}.

As a sub-embodiment 1 of embodiment 2, the first type of reference signal is a sounding reference signal, and the second type of reference signal is a channel state information reference signal.

As sub-embodiment 2 of embodiment 2, the first air interface resource includes an SRS resource (resource).

As a sub-embodiment 3 of the embodiment 2, the second air interface resource includes a CSI-RS resource (resource).

As a sub-embodiment 4 of the embodiment 2, the second field is a csi-RS-ConfigNZPId-r11 field.

As sub-embodiment 5 of embodiment 2, the second downlink information is SoundingRS-UL-Config IE.

As sub-embodiment 6 of embodiment 2, the third downlink information is CSI-RS-Config IE.

As a sub-embodiment 7 of Embodiment 2, the first type of antenna port is formed by superimposing multiple first-type antennas through antenna virtualization (Virtualization), and the multiple first-type antennas to the first type The mapping coefficients of the antenna ports form the first type of beamforming vectors. The first type of beamforming vector is formed by the Kronecker product of a first type of analog beamforming vector and a first type of digital beamforming vector. The first type of antenna is the antenna configured by the U4.

As a sub-embodiment 8 of Embodiment 2, the second type of antenna port is formed by superimposing multiple second type antennas through antenna virtualization (Virtualization), and the multiple second type antennas to the second type The mapping coefficients of the antenna ports form the second type of beamforming vectors. The second type of beamforming vector is formed by the Kronecker product of a second type of analog beamforming vector and a second type of digital beamforming vector. The second type of antenna is the antenna configured by the N3.

As a sub-embodiment 9 of Embodiment 2, that the measurement for the first type of reference signal is used by the N3 to generate the fourth downlink information means: the measurement for the first type of reference signal is used by the N3 For determining the K, the fourth downlink information indicates the K.

As a sub-embodiment 10 of Embodiment 2, that the measurement for the first type of reference signal is used by the N3 to generate the fourth downlink information means: the measurement for the first type of reference signal is used by the N3 for determining the K second-type antenna port groups, and the fourth downlink information indicates the K second-type antenna port groups.

As a sub-embodiment 11 of embodiment 2, the measurement for the first type of reference signal is used by the N3 to determine the K second type of antenna port groups. When the K second type of antenna port groups are changed, the sending of the fourth downlink information is triggered; otherwise, the sending of the fourth downlink information is not triggered.

As a sub-embodiment 12 of the embodiment 2, the measurement for the first type of reference signals is used by the N3 to determine K1 reference vectors. When the K1 reference vectors change, the sending of the fourth downlink information is triggered; otherwise, the sending of the fourth downlink information is not triggered.

As a sub-embodiment of sub-embodiment 12 of embodiment 2, the K1 is a positive integer not greater than the K.

As a sub-embodiment of sub-embodiment 12 of embodiment 2, the K1 is used to determine the K.

As a sub-embodiment of sub-embodiment 12 of embodiment 2, the K1 reference vectors are used to determine the K second-type antenna port groups.

As a sub-embodiment 13 of the embodiment 2, all the blocks F8 to F13 in FIG. 2 exist.

As the sub-embodiment 14 of the embodiment 2, the block F8, the block F9, the block F11 and the block F12 in FIG. 2 exist, and the block F10 and the block F13 do not exist.

As a sub-embodiment 15 of Embodiment 2, blocks F8 to F12 in FIG. 2 exist, and block F13 does not exist.

As the sub-embodiment 16 of the embodiment 2, the block F8, the block F9, the block F10, the block F11 and the block F13 in FIG. 2 exist, and the block F12 does not exist.

As the sub-embodiment 17 of the embodiment 2, the block F8, the block F9, the block F11 and the block F13 in FIG. 2 exist, and the block F10 and the block F12 do not exist.

Example 3

Embodiment 3 illustrates a schematic diagram of the content of the first downlink information, as shown in FIG. 3 .

In Embodiment 3, the first downlink information is an information unit, and the information unit includes {first field, second field, third field, fourth field}. The first field in the first downlink information is used to determine the first air interface resource, the second field in the first downlink information is used to determine the second air interface resource, the first The third field in the downlink information is used to determine the third air interface resource, and the fourth field is used to identify the corresponding information unit. The first air interface resource is reserved for the first type of reference signal in the present invention, and the second air interface resource is reserved for the second type of reference signal in the present invention. The first information in the present invention is sent in the third air interface resource.

As a sub-embodiment 1 of the embodiment 3, the information element is an IE.

As sub-embodiment 2 of embodiment 3, the information element is a CSI-Process IE.

As sub-embodiment 3 of embodiment 3, the first downlink information is CSI-Process IE.

As a sub-embodiment 4 of the embodiment 3, the first downlink information includes all fields in the CSI-Process IE.

As a sub-embodiment 5 of the embodiment 3, the first field is a csi-RS-ConfigNZPId-r11 field.

As a sub-embodiment 6 of the embodiment 3, the second field is a csi-RS-ConfigNZPId-r11 field.

As a sub-embodiment 7 of the embodiment 3, the fourth field is a csi-ProcessId-r11 field.

As a sub-embodiment 8 of Embodiment 3, the information element includes a fifth field, the fifth field in the first downlink information is used to determine a fourth air interface resource, and the first The node receives a third type of reference signal in the fourth air interface resource, and {measurement for the first type of reference signal, measurement for the third type of reference signal} is used to determine the first information.

As a sub-embodiment of sub-embodiment 8 of embodiment 3, the fourth air interface resource includes one or more of {time domain resources, frequency domain resources, code domain resources}.

As a sub-embodiment of sub-embodiment 8 of embodiment 3, the third type of reference signal includes one or more of {ZP CSI-RS, NZP CSI-RS, DMRS}.

As a sub-embodiment of sub-embodiment 8 of embodiment 3, the fifth field is a csi-IM-ConfigId-r11 field.

Example 4

Embodiment 4 illustrates a schematic diagram of the relationship between {first downlink information, Q1 pieces of second downlink information, and Q2 pieces of third downlink information}, as shown in FIG. 4 .

In Embodiment 4, the first downlink information is an information element, the information element includes a first field and a second field, and the first field in the first downlink information is used to determine the first field an air interface resource, and the second field in the first downlink information is used to determine the second air interface resource. The Q1 pieces of second downlink information are respectively used to determine {Q1 first type air interface resources, Q1 first type identifiers}, the Q1 first type identifiers and the Q1 first type air interface resources—one by one Correspondingly, the first field in the first downlink information is used to determine a first identifier, and the first air interface resource is one of the Q1 first type air interface resources. The first type air interface resource , the first type identifier corresponding to the first air interface resource is the first identifier. The Q2 third downlink information is respectively used to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type air interface resources—one by one Correspondingly, the second field in the first downlink information is used to determine a second identifier, and the second air interface resource is one of the Q2 second type air interface resources. The second type air interface resource , the second type identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer.

In FIG. 4 , the indices of {the Q1 second downlink information, the Q1 first type air interface resources, the Q1 first type identifier} are #{0, 1,..., Q1-1 respectively }, {the Q2 third downlink information, the Q2 second type air interface resources, the Q2 second type identifiers} are respectively #{0, 1, . . . , Q2-1}. The value of the first type identifier #x is equal to the first identifier, and the first air interface resource is the first type air interface resource #x, where x is a non-negative integer less than Q1. The value of the second type identifier #y is equal to the second identifier, and the second air interface resource is the second type air interface resource #y, where y is a non-negative integer less than Q2.

As sub-embodiment 1 of embodiment 4, the second downlink information is an IE.

As a sub-embodiment 2 of Embodiment 4, the second downlink information is CSI-RS-Config IE, the first node in the present invention is a user equipment, and the second node in the present invention is a base station.

As sub-embodiment 3 of embodiment 4, the second downlink information is SoundingRS-UL-Config IE, the first node is a base station, and the second node is a user equipment.

As a sub-embodiment 4 of the embodiment 4, the third downlink information is an IE.

As a sub-embodiment 5 of Embodiment 4, the third downlink information is SoundingRS-UL-Config IE, the first node is a user equipment, and the second node is a base station.

As a sub-embodiment 6 of the embodiment 4, the third downlink information is CSI-RS-Config IE, the first node is a base station, and the second node is a user equipment.

As a sub-embodiment 7 of the embodiment 4, the first field in the first downlink information indicates the first identifier.

As a sub-embodiment 8 of the embodiment 4, the second field in the first downlink information indicates the second identifier.

As a sub-embodiment 9 of the embodiment 4, the first type identifier is a non-negative integer.

As a sub-embodiment 10 of the embodiment 4, the second type identifier is a non-negative integer.

As a sub-embodiment 11 of the embodiment 4, the first identifier is a non-negative integer.

As a sub-embodiment 12 of the embodiment 4, the second identifier is a non-negative integer.

Example 5

Embodiment 5 illustrates a schematic diagram of the relationship between the first downlink information and the fourth downlink information, as shown in FIG. 5 .

In Embodiment 5, the first downlink information and the fourth downlink information are each an information unit, and the information unit includes {first field, second field, fourth field}. The first field in the first downlink information is used to determine the first air interface resource, and the first field in the fourth downlink information is used to reconfigure the first air interface resource. The second field in the first downlink information is used to determine second air interface resources, and the second field in the fourth downlink information is used to reconfigure the second air interface resources. The fourth field is used to identify the corresponding information unit. The value of the fourth field in the first downlink information is equal to the value of the fourth field in the fourth downlink information.

As a sub-embodiment 1 of Embodiment 5, the first downlink information and the fourth downlink information are both CSI-Process IEs.

As sub-embodiment 2 of embodiment 5, the first field is a csi-RS-ConfigNZPId-r11 field.

As sub-embodiment 3 of embodiment 5, the second field is a csi-RS-ConfigNZPId-r11 field.

As a sub-embodiment 4 of the embodiment 5, the fourth domain is the csi-ProcessId-r11 domain.

As a sub-embodiment 5 of Embodiment 5, the first field in the first downlink information is used to determine the first identifier, and the first field in the fourth downlink information is used to determine the first identifier. Three identifiers, the first identifier and the third identifier are respectively one of the first type identifiers of the Q1 first type identifiers in the present invention.

As a sub-embodiment of sub-embodiment 5 of embodiment 5, the first identifier is equal to the third identifier.

As a sub-embodiment of sub-embodiment 5 of embodiment 5, the first identifier is not equal to the third identifier.

As a sub-embodiment 6 of embodiment 5, the second field in the first downlink information is used to determine the second identifier, and the second field in the fourth downlink information is used to determine the first Four identifiers, the second identifier and the fourth identifier are respectively one of the second type identifiers in the Q2 second type identifiers in the present invention.

As a sub-embodiment of sub-embodiment 6 of embodiment 5, the second identifier is not equal to the fourth identifier.

Example 6

Embodiment 6 illustrates a schematic diagram of how to generate the second type of reference signal according to the measurement for the first type of reference signal, as shown in FIG. 6 .

In Embodiment 6, the second node in the present invention sends the first type of reference signal in a first air interface resource, and the first node in the present invention sends the second reference signal in a second air interface resource class reference signal. The first air interface resource includes M first sub-resources, the first-type reference signal includes M first-type sub-signals, and the M first-type sub-signals are respectively in the M first sub-resources Sent by M first type antenna port groups. The second air interface resource includes K second sub-resources, the second-type reference signal includes K second-type sub-signals, and the K second-type sub-signals are respectively in the K second sub-resources Sent by the K second type of antenna port groups. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers. The measurements for the K1 first-type sub-signals are respectively used to determine K1 reference vectors, which are used to determine the K second-type antenna port groups. The K1 first-type sub-signals are a subset of the M first-type sub-signals, and the K1 is a positive integer not greater than the M and not greater than the K.

In FIG. 6 , the white filled ellipse with the solid border and the ellipse filled with the solid border slanted line together represent the first type reference signal, and the ellipse filled with the solid border slanted line represents the K1 first type sub-signals , the ellipse filled with the dotted border square and the ellipse filled with the dotted border together represent the second type of reference signal.

As a sub-embodiment 1 of Embodiment 6, the measurements on the M first-type sub-signals are respectively used to determine M first measurement values, and the K1 first-type sub-signals are the M first-type sub-signals The first type of sub-signals corresponding to the largest K1 of the first measurement values in the type of sub-signals.

As a sub-embodiment 2 of embodiment 6, the measurements on the M first-type sub-signals are respectively used to determine M reference vectors, the K1 reference vectors being a subset of the M reference vectors. Any one of the M reference vectors belongs to an antenna virtualization vector set, and the antenna virtualization vector set includes a positive integer number of antenna virtualization vectors.

As a sub-embodiment 3 of Embodiment 6, for any given first-type sub-signal, when the given first-type sub-signal is received by the corresponding reference vector, the given first-type sub-signal The reception quality is higher than the reception quality of the given first-type sub-signal when the given first-type sub-signal is received by other antenna virtualization vectors in the antenna virtualization vector set.

As a sub-embodiment of sub-embodiment 3 of embodiment 6, the reception quality is CQI.

As a sub-embodiment of sub-embodiment 3 of embodiment 6, the reception quality is RSRP.

As a sub-embodiment of sub-embodiment 3 of embodiment 6, the reception quality is RSRQ.

As a sub-embodiment 4 of the embodiment 6, the first measurement value is the reception quality obtained when the corresponding sub-signal of the first type is received by using the corresponding reference vector.

As a sub-embodiment 5 of Embodiment 6, the first type of antenna port is formed by superimposing multiple first-type antennas through antenna virtualization (Virtualization), and the multiple first-type antennas to the first type The mapping coefficients of the antenna ports form the first type of beamforming vectors. The first type of beamforming vector is formed by the Kronecker product of a first type of analog beamforming vector and a first type of digital beamforming vector. The first type of antenna is an antenna configured by the second node.

As a sub-embodiment 6 of embodiment 6, different first-type antenna ports in a first-type antenna port group correspond to the same first-type analog beamforming vector.

As a sub-embodiment 7 of embodiment 6, different first-type antenna ports in one first-type antenna port group correspond to different first-type digital beamforming vectors.

As a sub-embodiment 8 of embodiment 6, different first-type antenna port groups correspond to different first-type analog beamforming vectors.

As a sub-embodiment 9 of the embodiment 6, the second type of antenna port is formed by superimposing multiple second type antennas through antenna virtualization (Virtualization), and the multiple second type antennas to the second type The mapping coefficients of the antenna ports form the second type of beamforming vectors. The second type of beamforming vector is formed by the Kronecker product of a second type of analog beamforming vector and a second type of digital beamforming vector. The second type of antenna is an antenna configured by the first node.

As a sub-embodiment 10 of embodiment 6, different antenna ports of the second type in one of the antenna port groups of the second type correspond to the same analog beamforming vector of the second type.

As a sub-embodiment 11 of embodiment 6, different antenna ports of the second type in one of the antenna port groups of the second type correspond to different digital beamforming vectors of the second type.

As a sub-embodiment 12 of Embodiment 6, different second-type antenna port groups correspond to different second-type analog beamforming vectors.

As a sub-embodiment 13 of Embodiment 6, the K1 reference vectors are used to determine K second-type analog beamforming vectors, and the K second-type analog beamforming vectors are respectively the Kth analog beamforming vectors The second type of analog beamforming vector corresponding to the second type of antenna port group.

As a sub-embodiment 14 of Embodiment 6, the K1 is less than or equal to the K, and K1 of the K second-type analog beamforming vectors are respectively equal to the second-type analog beamforming vectors K1 reference vectors. In FIG. 6 , the ellipse filled with the dotted border square represents the second type of antenna port group obtained by using the K1 reference vectors as the second type of analog beamforming vectors. In FIG. 6 , the ellipse filled with the dots in the dashed border represents the corresponding ones of the second type of analog beamforming vectors that do not belong to the K1 reference vectors among the K second-type analog beamforming vectors. Describe the second type of antenna port group. In FIG. 6 , the ellipse of the dashed border represents the second-type antenna port group obtained by using the antenna virtualization vector in the antenna virtualization vector set as the second-type analog beamforming vector.

As a sub-embodiment of sub-embodiment 14 of embodiment 6, any one of the K second-type analog beamforming vectors is one of the second-type analog beamforming vectors in the antenna virtualization vector set One of the antenna virtualization vectors.

As a sub-embodiment 15 of Embodiment 6, the time domain resources occupied by any two of the M first sub-resources are mutually orthogonal (non-overlapping).

As a sub-embodiment 16 of the embodiment 6, time domain resources occupied by at least two of the first sub-resources in the M first sub-resources are mutually orthogonal (non-overlapping).

As a sub-embodiment 17 of the embodiment 6, at least two of the M first sub-resources have the same time domain resources occupied by the first sub-resources.

As a sub-embodiment 18 of Embodiment 6, the time domain resources occupied by any two of the K second sub-resources are mutually orthogonal (non-overlapping).

As a sub-embodiment 19 of the embodiment 6, the time domain resources occupied by at least two of the K second sub-resources are mutually orthogonal (non-overlapping).

As a sub-embodiment 20 of Embodiment 6, at least two of the K second sub-resources have the same time domain resources occupied by the second sub-resources.

Example 7

Embodiment 7 illustrates a schematic diagram of the relationship of {the first air interface resource, the second air interface resource, and the third air interface resource} in the time domain, as shown in FIG. 7 .

In Embodiment 7, {the first air interface resource, the second air interface resource, and the third air interface resource} respectively appear multiple times in the time domain. The time interval between any two adjacent occurrences of the first air interface resource in the time domain is equal, and the time interval between any two adjacent occurrences of the second air interface resource in the time domain is equal, The time interval between any two adjacent occurrences of the third air interface resource in the time domain is equal. {The first air interface resource, the second air interface resource, and the third air interface resource} are configured by the same information element in the present invention. {the first air interface resource, the second air interface resource, and the third air interface resource} configured by the same information element are associated.

In FIG. 7 , the boxes filled with left slashes represent the first air interface resource, the boxes filled with right slashes represent the second air interface resources, and the boxes filled with squares represent the third air interface resources.

As a sub-embodiment 1 of Embodiment 7, the time interval between any two adjacent occurrences of the first air interface resource configured by a given information unit in the time domain and the time interval configured by the given information unit The time interval between any two adjacent occurrences of the second air interface resource in the time domain is equal. The time interval between any two adjacent occurrences of the first air interface resource configured by the given information unit in the time domain and the third air interface resource configured by the given information unit are arbitrarily similar in the time domain. The time interval between adjacent occurrences is equal. The given information unit is any one of the information units.

Example 8

Embodiment 8 illustrates a structural block diagram of the processing device used in the first node, as shown in FIG. 8 . In FIG. 8 , the processing device 200 in the first node is mainly composed of a first processing module 201 , a second processing module 202 and a third processing module 203 .

In Embodiment 8, the first processing module 201 is used to receive the first downlink information; the second processing module 202 is used to receive the first type of reference signal in the first air interface resource; the third processing module 203 is used to The second type of reference signal is sent in the air interface resources.

In Embodiment 8, the first node is a user equipment. The first downlink information is an information unit, the information unit includes a first field and a second field, and the first field in the first downlink information is used by the second processing module 202 to determine The first air interface resource and the second field in the first downlink information are used by the third processing module 203 to determine the second air interface resource. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The intended recipient of the first type of reference signal includes the first node, and the sender of the second type of reference signal is the first node. The measurements for the first type of reference signal are used by the third processing module 203 to generate the second type of reference signal. The first air interface resource includes M first sub-resources, and the first-type reference signal is respectively sent by M first-type antenna port groups in the M first sub-resources. The second air interface resource includes K second sub-resources, and the second-type reference signal is respectively transmitted by K second-type antenna port groups in the K second sub-resources. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers.

As a sub-embodiment 1 of Embodiment 8, the first processing module 201 is further configured to receive Q1 pieces of second downlink information and Q2 pieces of third downlink information. The Q1 pieces of second downlink information are respectively used by the second processing module 202 to determine {Q1 first type air interface resources, Q1 first type identifiers}, the Q1 first type identifiers and the Q1 first type air interface resources are in one-to-one correspondence, the first field in the first downlink information is used by the second processing module 202 to determine a first identifier, and the first air interface resource is the Q1 One of the first-type air interface resources, and the first-type identifier corresponding to the first air-interface resource is the first identifier. The Q2 third downlink information is respectively used by the third processing module 203 to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type identifiers. The second type of air interface resources are in one-to-one correspondence, the second field in the first downlink information is used by the third processing module 203 to determine a second identifier, and the second air interface resource is the Q2 One of the two types of air interface resources is the second type of air interface resource, and the second type of identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer.

As sub-embodiment 2 of embodiment 8, the first processing module 201 is further configured to receive downlink signaling. The downlink signaling is used to trigger the sending of at least one of {the first type of reference signal, the second type of reference signal}.

As a sub-embodiment 3 of Embodiment 8, the first type of reference signal is a channel state information reference signal, and the second type of reference signal is a sounding reference signal.

As a sub-embodiment 4 of the embodiment 8, the information unit includes a fourth field, and the fourth field is used to identify the corresponding information unit.

As a sub-embodiment 5 of the embodiment 8, the second processing module 202 is further configured to send the first information. Wherein, the measurement for the first type of reference signal is used by the second processing module 202 to determine the first information. The first information is used to determine whether the K second type antenna port groups need to be updated. The information unit includes a third field, and the third field in the first downlink information is used by the second processing module 202 to determine a third air interface resource, and the first information is in the third air interface. sent in the resource.

As a sub-embodiment 6 of the embodiment 8, the third processing module 203 is further configured to receive fourth downlink information. Wherein, the first information is used to trigger the fourth downlink information. The fourth downlink information is used to reconfigure at least the latter of {the first air interface resource, the second air interface resource}.

Example 9

Embodiment 9 illustrates a structural block diagram of the processing device used in the second node, as shown in FIG. 9 . In FIG. 9 , the processing device 300 in the second node is mainly composed of a fourth processing module 301 , a fifth processing module 302 and a sixth processing module 303 .

In Embodiment 9, the fourth processing module 301 is used to send the first downlink information; the fifth processing module 302 is used to send the first type of reference signal in the first air interface resource; the sixth processing module 303 is used to send the first type of reference signal in the second The second type of reference signal is received in the air interface resource.

In Embodiment 9, the second node is a base station. The first downlink information is an information element, the information element includes a first field and a second field, and the first field in the first downlink information is used to determine the first air interface resource, The second field in the first downlink information is used to determine the second air interface resource. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The sender of the first type of reference signal is the second node, and the target recipient of the second type of reference signal includes the second node. Measurements for the first type of reference signal are used to generate the second type of reference signal. The first air interface resource includes M first sub-resources, and the first-type reference signal is respectively sent by M first-type antenna port groups in the M first sub-resources. The second air interface resource includes K second sub-resources, and the second-type reference signal is respectively transmitted by K second-type antenna port groups in the K second sub-resources. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers.

As a sub-embodiment 1 of Embodiment 9, the fourth processing module 301 is further configured to send Q1 pieces of second downlink information and Q2 pieces of third downlink information. The Q1 pieces of second downlink information are respectively used to determine {Q1 first type air interface resources, Q1 first type identifiers}, the Q1 first type identifiers and the Q1 first type air interface resources One-to-one correspondence, the first field in the first downlink information is used to determine a first identifier, and the first air interface resource is one of the Q1 first-type air interface resources of the first type Air interface resources, the first type identifier corresponding to the first air interface resource is the first identifier. The Q2 third downlink information is respectively used to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type air interface resources—one by one Correspondingly, the second field in the first downlink information is used to determine a second identifier, and the second air interface resource is one of the Q2 second type air interface resources. The second type air interface resource , the second type identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer.

As the second sub-embodiment of the ninth embodiment, the fourth processing module 301 is further configured to send downlink signaling. The downlink signaling is used to trigger the sending of at least one of {the first type of reference signal, the second type of reference signal}.

As a sub-embodiment 3 of Embodiment 9, the first type of reference signal is a channel state information reference signal, and the second type of reference signal is a sounding reference signal.

As a sub-embodiment 4 of the embodiment 9, the information unit includes a fourth field, and the fourth field is used to identify the corresponding information unit.

As a sub-embodiment 5 of the ninth embodiment, the fifth processing module 302 is further configured to receive the first information. Wherein, measurements for the first type of reference signals are used to determine the first information. The first information is used by the fourth processing module 301 to determine whether the K second-type antenna port groups need to be updated. The information element includes a third field, and the third field in the first downlink information is used to determine a third air interface resource, and the first information is sent in the third air interface resource.

As the sixth sub-embodiment of the ninth embodiment, the sixth processing module 303 is further configured to send fourth downlink information. Wherein, the first information is used to trigger the fourth downlink information. The fourth downlink information is used to reconfigure at least the latter of {the first air interface resource, the second air interface resource}.

Example 10

Embodiment 10 illustrates a structural block diagram of the processing apparatus used in the first node, as shown in FIG. 10 . In FIG. 10 , the processing device 400 in the first node is mainly composed of a first processing module 401 , a second processing module 402 and a third processing module 403 .

In Embodiment 10, the first processing module 401 is used to send the first downlink information; the second processing module 402 is used to receive the first type of reference signals in the first air interface resource; the third processing module 403 is used to The second type of reference signal is sent in the air interface resources.

In embodiment 10, the first node is a base station. The first downlink information is an information element, the information element includes a first field and a second field, and the first field in the first downlink information is used to determine the first air interface resource, The second field in the first downlink information is used to determine the second air interface resource. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The intended recipient of the first type of reference signal includes the first node, and the sender of the second type of reference signal is the first node. The measurements for the first type of reference signal are used by the third processing module 403 to generate the second type of reference signal. The first air interface resource includes M first sub-resources, and the first-type reference signal is respectively sent by M first-type antenna port groups in the M first sub-resources. The second air interface resource includes K second sub-resources, and the second-type reference signal is respectively transmitted by K second-type antenna port groups in the K second sub-resources. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers.

As a sub-embodiment 1 of Embodiment 10, the first processing module 401 is further configured to send Q1 pieces of second downlink information and Q2 pieces of third downlink information. The Q1 pieces of second downlink information are respectively used to determine {Q1 first type air interface resources, Q1 first type identifiers}, the Q1 first type identifiers and the Q1 first type air interface resources One-to-one correspondence, the first field in the first downlink information is used to determine a first identifier, and the first air interface resource is one of the Q1 first-type air interface resources of the first type Air interface resources, the first type identifier corresponding to the first air interface resource is the first identifier. The Q2 third downlink information is respectively used to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type air interface resources—one by one Correspondingly, the second field in the first downlink information is used to determine a second identifier, and the second air interface resource is one of the Q2 second type air interface resources. The second type air interface resource , the second type identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer.

As the second sub-embodiment of the tenth embodiment, the first processing module 401 is further configured to send downlink signaling. The downlink signaling is used to trigger the sending of at least one of {the first type of reference signal, the second type of reference signal}.

As a sub-embodiment 3 of Embodiment 10, the first type of reference signal is a sounding reference signal, and the second type of reference signal is a channel state information reference signal.

As the fourth sub-embodiment of the tenth embodiment, the third processing module 403 is further configured to send fourth downlink information. Wherein, the measurement on the reference signal of the first type is used for at least one of {triggering the fourth downlink information, generating the fourth downlink information}. The fourth downlink information is used to reconfigure at least the latter of {the first air interface resource, the second air interface resource}.

Example 11

Embodiment 11 illustrates a structural block diagram of the processing apparatus used in the second node, as shown in FIG. 11 . In FIG. 11 , the processing device 500 in the second node is mainly composed of a fourth processing module 501 , a fifth processing module 502 and a sixth processing module 503 .

In Embodiment 11, the fourth processing module 501 is configured to receive the first downlink information; the fifth processing module 502 is configured to send the first type of reference signal in the first air interface resource; the sixth processing module 503 is configured to The second type of reference signal is received in the air interface resource.

In Embodiment 11, the second node is a user equipment. The first downlink information is an information unit, the information unit includes a first field and a second field, and the first field in the first downlink information is used by the fifth processing module 502 to determine The first air interface resource and the second field in the first downlink information are used by the sixth processing module 503 to determine the second air interface resource. The first air interface resources are reserved for the first type of reference signals, and the second air interface resources are reserved for the second type of reference signals. The sender of the first type of reference signal is the second node, and the target recipient of the second type of reference signal includes the second node. Measurements for the first type of reference signal are used to generate the second type of reference signal. The first air interface resource includes M first sub-resources, and the first-type reference signal is respectively sent by M first-type antenna port groups in the M first sub-resources. The second air interface resource includes K second sub-resources, and the second-type reference signal is respectively transmitted by K second-type antenna port groups in the K second sub-resources. The first type of antenna port group includes a positive integer number of the first type of antenna ports, the second type of antenna port group includes a positive integer number of the second type of antenna ports, and the M and K are respectively positive integers.

As a sub-embodiment 1 of Embodiment 11, the fourth processing module 501 is further configured to receive Q1 pieces of second downlink information and Q2 pieces of third downlink information. The Q1 pieces of second downlink information are respectively used by the fifth processing module 502 to determine {Q1 first-type air interface resources, Q1 first-type identifiers}, the Q1 first-type identifiers and the Q1 first type air interface resources are in one-to-one correspondence, the first field in the first downlink information is used by the fifth processing module 502 to determine the first identifier, and the first air interface resource is the Q1 One of the first-type air interface resources, and the first-type identifier corresponding to the first-type air interface resource is the first identifier. The Q2 third downlink information is respectively used by the sixth processing module 503 to determine {Q2 second type air interface resources, Q2 second type identifiers}, the Q2 second type identifiers and the Q2 second type identifiers The second type of air interface resources are in one-to-one correspondence, the second field in the first downlink information is used by the sixth processing module 503 to determine a second identifier, and the second air interface resource is the Q2 One of the two types of air interface resources is the second type air interface resource, and the second type identifier corresponding to the second air interface resource is the second identifier. The Q1 and the Q2 are each a positive integer.

As sub-embodiment 2 of embodiment 11, the fourth processing module 501 is further configured to receive downlink signaling. The downlink signaling is used to trigger the sending of at least one of {the first type of reference signal, the second type of reference signal}.

As a sub-embodiment 3 of Embodiment 11, the first type of reference signal is a sounding reference signal, and the second type of reference signal is a channel state information reference signal.

As a sub-embodiment 4 of the embodiment 11, the sixth processing module 503 is further configured to receive fourth downlink information. Wherein, the measurement on the reference signal of the first type is used for at least one of {triggering the fourth downlink information, generating the fourth downlink information}. The fourth downlink information is used to reconfigure at least the latter of {the first air interface resource, the second air interface resource}.

Those skilled in the art can understand that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the foregoing embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above-mentioned embodiments may be implemented in the form of hardware, or may be implemented in the form of software function modules, and the present application is not limited to any specific form of the combination of software and hardware. User equipment or terminals in the present invention include but are not limited to mobile phones, tablet computers, notebooks, network cards, Internet of Things communication modules, vehicle-mounted communication devices, NB-IOT terminals, eMTC terminals and other wireless communication devices. The base station or system equipment in the present invention includes but is not limited to wireless communication equipment such as macrocell base station, microcell base station, home base station, and relay base station.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (15)

1. An apparatus in a first node used for multi-antenna transmission, comprising:

a first processing module: sending first downlink information;

the first downlink information is an information unit, the information unit includes a first field and a second field, the first field in the first downlink information is used for determining a first air interface resource, and the second field in the first downlink information is used for determining a second air interface resource; the first air interface resource is reserved for a first type of reference signals, and the second air interface resource is reserved for a second type of reference signals; the target receiver of the first type of reference signal comprises the first node, and the sender of the second type of reference signal is the first node; measurements for the first class of reference signals are used to generate the second class of reference signals; the first node is a base station.

2. An arrangement in a first node according to claim 1, characterised in that the information element is an IE.

3. The apparatus in the first node according to claim 1 or 2, wherein the first processing module sends Q1 second downstream information and Q2 third downstream information; the Q1 pieces of second downlink information are respectively used to determine Q1 first-type air interface resources and Q1 first-type identifiers, the Q1 first-type identifiers correspond to the Q1 first-type air interface resources one to one, the first domain in the first downlink information is used to determine a first identifier, the first air interface resource is one of the Q1 first-type air interface resources, and the first-type identifier corresponding to the first air interface resource is the first identifier; the Q2 pieces of third downlink information are respectively used to determine Q2 second-class air interface resources and Q2 second-class identifiers, the Q2 second-class identifiers correspond to the Q2 second-class air interface resources one to one, the second field in the first downlink information is used to determine a second identifier, the second air interface resource is one of the Q2 second-class air interface resources, and the second-class identifier corresponding to the second air interface resource is the second identifier; the Q1 and the Q2 are each positive integers.

4. The apparatus in the first node according to claim 3, wherein the second downlink information is carried by RRC signaling and the third downlink information is carried by RRC signaling.

5. The apparatus in the first node according to any of claims 1 to 4, wherein the first processing module sends downlink signaling; the downlink signaling is used for triggering the first-class reference signal and the second-class reference signal, and at least one of the first-class reference signal and the second-class reference signal is sent.

6. The arrangement in the first node according to claim 5, characterised in that the downlink signalling is physical layer signalling.

7. The arrangement in the first node according to any of claims 1-6, further comprising the following two modules:

a second processing module: receiving the first type of reference signal in the first air interface resource;

a third processing module: sending the second type of reference signal in the second air interface resource;

the first air interface resource comprises M first sub-resources, and the first type reference signals are respectively sent by M first type antenna port groups in the M first sub-resources; the second air interface resource comprises K second sub-resources, and the second-type reference signals are respectively sent by K second-type antenna port groups in the K second sub-resources; the first antenna port group comprises a positive integer of first antenna ports, the second antenna port group comprises a positive integer of second antenna ports, and M and K are positive integers respectively.

8. The arrangement in the first node according to claim 7, characterized in that measurements for the reference signals of the first type are used for determining the groups of antenna ports of the K second types.

9. The arrangement in the first node according to any of claims 1-8, comprising:

a third processing module: sending fourth downlink information;

wherein the measurement for the first type of reference signal is used for { triggering the fourth downlink information, generating the fourth downlink information }; the fourth downlink information is used to reconfigure at least the latter of the first air interface resource or the second air interface resource.

10. The arrangement in the first node according to any of claims 1-9, characterised in that the reference signals of the first type are sounding reference signals and the reference signals of the second type are channel state information reference signals.

11. An arrangement in a first node according to any of claims 1-10, characterised in that a fourth field is included in the information unit, which fourth field is used for identifying the corresponding information unit.

12. An arrangement in a first node according to any of claims 1-11, characterised in that the time domain resources occupied by the first air interface resources and the time domain resources occupied by the second air interface resources are associated.

13. An apparatus in a second node used for multi-antenna transmission, comprising:

a fourth processing module: receiving first downlink information;

the first downlink information is an information unit, the information unit includes a first field and a second field, the first field in the first downlink information is used for determining a first air interface resource, and the second field in the first downlink information is used for determining a second air interface resource; the first air interface resource is reserved for a first type of reference signals, and the second air interface resource is reserved for a second type of reference signals; the sender of the first type of reference signal is the second node, and the target receiver of the second type of reference signal comprises the second node; measurements for the first class of reference signals are used to generate the second class of reference signals; the second node is a user equipment.

14. A method in a first node used for multi-antenna transmission, comprising the steps of:

-step a. sending first downlink information;

the first downlink information is an information unit, the information unit includes a first field and a second field, the first field in the first downlink information is used for determining a first air interface resource, and the second field in the first downlink information is used for determining a second air interface resource; the first air interface resource is reserved for a first type of reference signals, and the second air interface resource is reserved for a second type of reference signals; the target receiver of the first type of reference signal comprises the first node, and the sender of the second type of reference signal is the first node; measurements for the first class of reference signals are used to generate the second class of reference signals; the first node is a base station.

15. A method in a second node used for multi-antenna transmission, comprising the steps of:

-step a. receiving first downlink information;

the first downlink information is an information unit, the information unit includes a first field and a second field, the first field in the first downlink information is used for determining a first air interface resource, and the second field in the first downlink information is used for determining a second air interface resource; the first air interface resource is reserved for a first type of reference signals, and the second air interface resource is reserved for a second type of reference signals; the sender of the first type of reference signal is the second node, and the target receiver of the second type of reference signal comprises the second node; measurements for the first class of reference signals are used to generate the second class of reference signals; the second node is a user equipment.

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